Set-trigger



(No Model.)

0. A. BREM'ER.

SET TRIGGER.

No. 446,912. Patent@ Peb. 24, 189;l

Urirrii Sterns lnrnrir Fries.

OTTO A. BREMER, OF SAN FRANCISCO, CALIFORNIA.

sET-TRIGGER.

SPECIFICATION forming part of Letters Patent No. 446,912, dated February24, 1891.

Application filed June 4, 1890. Serial No. 354,272. (No model.)

To all whom, t may concern:

Be it known that I, OTTO A. BREMER, a citizen of the United States,residing in the city and county of San Francisco, State of California,have invented certain new and useful Improvements in Set- Triggers forBreech- Loading Fire-Arms, of which the following is a specicat-ion. Y

This invention relates to improvements in set-triggers for fire-arms,and more especially to the production of a combination plain and settrigger for the Vinchester ride and iirearms of that class.

It consists of a novel construction and combination of parts andmechanism with the ordinary trigger and parts of the lock, ashereinafter fully described, whereby certain advantages are secured overthe present settrigger provided in the fire-arms of the class mentioned,particularly in lightness and delicacy of action when set, rapidity ofadjustment in changing from the ordinary trigger, and safety in handlingthe gun.

The following description explains the nature of the said improvementsand the inanner in which I proceed to produce and apply the same, theaccompanying drawings being referred to by figures and letters.

Figure l represents the improvements applied to the Vinchestersingle-shot rifle and shows the parts in side view, the side of thereceiver being cut away to expose the parts within. In this view theparts are in position either for ordinary ring or ready to adjust theset-trigger for action. Fig. 2 shows the parts adjusted to use theset-trigger.

No change is made in the general const-ruction of the loading andring1nechanisin,and therefore the breech-block A and connected parts,the hammer B and sear C, and the adjacent parts remain the same. Spaceis required, however, behind the ordinary trigger or finger-piece D forthe set-trigger l, and the guard E is lengthened to extend behind thissecond trigger. In addition to the knock-oft' F, there is an auxiliaryknock-off 2, which I shall call the set knock-o, so arranged at one sideof the main knock-oft that it sets under the end of the sear in positionto strike it when thrown up. This second knock-off is in one piece withthe set-trigger l, and is of suitable length and shape to extend overthe main trigger and not interfere with that part or with`the mainknock-off in the ordinary operation of those parts. The knock-oft iF ispivoted at f, and is reduced in thicknessin order to accommodate thepiece 2, whichfplays alongside of it. Connection of the main trigger ismade with its knock-ott by the connection g in the usual manner, and thehammer is released directly by the throw of this knockoff with anordinary pull of the main trigger. The same trigger, however, isarranged to work the second knock-off, and in such adjustment it holdsdown that part against the reaction ot a flat spring 4, which throws upthe set knock-oit against the sear and releases the hammer when the maintrigger is touched.

The connection between the main trigger and the second trigger affordssuch delicate adjustment or set of the parts that a light touch issufficient to iire the gun, while the arrangement of the two triggers issuch that the change from ordinary trigger to set trigger is made at thetime of firing when the gun is up to the shoulder and can be donequickly. By such means I avoid the necessity of adj listing theset-trigger before bringing the gun into position, and thus remove acommon source ot' danger. This connection is made by the pivoted hook orcatch-piece 5 in the block ot the main trigger and a toggle-lever 6,pivoted at 9 in the plate H between that catch and the head of thesecond trigger. The front end of this lever is suitably formed to engagewith the notch 8 in the catch 5 when raised up into substantiallyhorizontal position, while the rear end of the lever has a recess orsocket l0 to take a projecting knucklepiece 12 on the second trigger.These two points of connection between the main and set triggers and thepivot 9 of the lever are in the same line and above the line of the twopivots on which the triggers are hung when the set-trigger is drawnback. Consequently the second knock-off when depressed by the movementof the trigger is held down by the toggle-lever and cannot spring upuntil the leveris released from the catch 8. The lat spring 14:, iiXedat the end 15 and bearing on the front end of the toggle-lever pressesdown that end of the lever, and thus throws IOO the toggle out ot' linewhen the main toggle is pulled.

The catch 5 is pivoted in aslot in the block DX of the main trigger andis held in position by a coil-spring, the tail of the catch resting on aset-screwf?, by which the set can be adjusted to Work with more or lessdelicacy. As thus constructed and arranged for operation, this triggeris set for delicate action by pulling on the set-trigger and is fired bya light touch on the forward trigger, and as both the movementof theiinger to adjust and that to re are made in the same direction theset-trigger can be quickly brought into action at any time When the gunis in position and immediately at the timev of firing.

Having thus fully described myinvention, whatI claim, and desire tosecure by Letters Patent, is-q l. In a ritle, the combination, with avmain trigger and a Sear, of a main knock-oftl to opcrate said scar,having connection with the main trigger, as described, a secondknock-off and second trigger connected thereto, and a toggle-leverhaving bearings upon the second knoclpoff and main trigger, as setforth.

2. In a rifie, the combination of a main trigger and knock-off operatedthereby, a catch-piece pivoted on the block of the main trigger, atoggle-lever having one end engaged by said catch, a second knock-oithaving engagement with the opposite end of the togglelever, a secondtrigger connected to the second knock-off, and a spring pressing uponthe Said knock-oil back of its pivot, as set forth.

In testimony that I claim the foregoing l have hereunto set my hand andseal.

